A Software-Defined Networking Solution for Transparent Session and Service Continuity in Dynamic Multi-Access Edge Computing

Multi-Access Edge Computing (MEC) will allow implementing low-latency services that have been unfeasible so far. The European Telecommunications Standards Institute (ETSI) and the 3rd Generation Partnership Project (3GPP) are working towards the standardization of MEC in 5G networks and the correspo...

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Bibliographic Details
Published in:arXiv.org 2021-06
Main Authors: Fondo-Ferreiro, Pablo, Gil-Castiñeira, Felipe, González-Castaño, Francisco Javier, Candal-Ventureira, David
Format: Article
Language:English
Subjects:
Anchors
Cellular communication
Continuity
Edge computing
Mobile computing
Network latency
Relocation
Software
Software-defined networking
Standardization
Wireless networks
Online Access:Get full text
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Summary:Multi-Access Edge Computing (MEC) will allow implementing low-latency services that have been unfeasible so far. The European Telecommunications Standards Institute (ETSI) and the 3rd Generation Partnership Project (3GPP) are working towards the standardization of MEC in 5G networks and the corresponding solutions for routing user traffic to applications in local area networks. Nevertheless, there are neither practical implementations for dynamically relocating applications from the core to a MEC host nor from one MEC host to another ensuring service continuity. In this paper we propose a solution based on Software-Defined Networking (SDN) to create a new instance of the IP anchor point to dynamically redirect User Equipment (UE) traffic to a new physical location (e.g. an edge infrastructure). We also present a novel approach that leverages SDN to replicate the previous context of the connection in the new instance of the IP anchor point, thus guaranteeing Session and Service Continuity (SSC), and compare it with alternative state replication strategies. This approach can be used to implement edge services in 4G or 5G networks.
ISSN:2331-8422
DOI:10.48550/arxiv.2009.01716